Features 1、Made of aluminum alloy, which is more durable and durable, with a streamlined appearance design and an upgraded texture. 2、The 180‑degree widened illumination face, LED spot light combined with mirror technology to achieve 180° azimuth illumination. 3、Built‑in high‑precise sensor and depth algorithm can quickly detect even slight braking, use maximum brightness to remind people and vehicles behind. 4、Two operating modes for the taillights, the power‑on tap is automatic mode, and the power‑on press and hold for 3 seconds is manual mode. 5、IPX6 waterproof, not afraid of wind and rain travel, screw‑type fixing, convenient for daily charging and installation. Specification Item Type: Bike Brake Sensing Lamp Material: Aluminum Alloy Color: As Picture Shown Light Head Width: Approx. 34mm/1.3in Weight: Approx. 75.0g/2.6oz Power Supply: 500mAh Li-ion Battery (built-in) Lamp Beads: LED High-Brightness Light Source Charging Method: USB Charging Flood Light Angle: 180 Degrees Brightness: 100lm Waterproof Grade: IPX6 Waterproof Lighting Mode: Breathing light, low constant light, medium constant light, high constant light, slow flash, medium flash, fast flash How to use: Automatic Mode: Power on and press, the light sensor will automatically turn off in 5 seconds during the day, breathing light, low constant light, medium constant light, high constant light, slow flash, medium flash, fast flash Manual Mode: Press and hold for 3 seconds when power on, breathing light, low constant light, medium constant light, high constant light, slow flash, medium flash, fast flash Package List 1 x Bike Brake Sensing Lamp 1 x Install Bracket 1 x Cushion Pad 1 x USB Charging Cable 1 x Manual